Exhaust-manifold



J. M. KING.

EXHAUST MANIFOLD.

APPLICATION man APR. I, 1916. RENEWED AUG. 30. 1918.

Patented Apr. 19, 1921.

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EXHAUST MANIFOLD. I

APPLICATION FILED APR. 7. 1916. RENEWED AUG- 30, 191B.

Patented Apr. 19, 1921.

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UNITED mm JOSEPH MARION KING, OF DETROIT, MICHIGAN.

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\ Specification of Letters latent.

Application filed April 7, 1916, Serial No. 88,570. Renewed August 30, 1918. Serial No. 858,188.

of its objects, the preparation of such heavy.

distillations of petroleum as kerosene, distillate, fuel oil and even the light Oklahoma crude, such liquid hydrocarbons as require" very high temperatures to produce vaporization.

The invention contemplates afuel assage formed in the exhaust manifold 0 an engine, where it is subjected to the initial heat of the exhaust gases as they enter the manifold from the engine-cylinders, the fuel passage being provided with transverse bafiling members set in staggered relation to each other to cause impingement on their surfaces of the liquid fuel and its consequent vaporization; the invention further contemplates the thorough mixing of the air and vapor by reason of the staggered impingement members to conserve the preferred process of combustion.

Heretofore many devices have been designed, whose object was the utilization of kerosene and heavier distillations of petroleum as a motive fuel for internal combustion engines; many of them in the form of carbureters, provided with impingement means and heated by the exhaust gases, others simple fuel passages equipped with staggered impingement members and heated by the exhaust gases, while at least in one instance, the intake manifold is shown equipped with staggered rods and heated by the exhaust ases, the gases being led away from the ex aust manifold to a heating chamber formed on the sides of the intake manifold. The forming of the fuel passage in the exhaust manifold, without impingement members however, is also a construction in connection with heating the air to the carbureter, for the purpose of burning kerosene.

Now, in all the devices of this type, where staggered impingement members are used I and where the expended gases are employed to heat the fuel passage, the heating is ac- Patented Apr. '19, 1921;

complished by leading the ex ended gases I away from the exhaust manifo d to the dev1ce. .Experience shows. that the heat of the gases, when employed in this manner,

is not sufficient to properly vaporize the,

liquid fuel. A portion of the charge enters the cylinders in liquid form and from there passes to the crank-case, where it impairs the lubricating oil and often causes burned out bearings. The method is not only also wasteful but in very cold weather, where the temperature falls to zero and below zero it is impracticable,especially so when light running or idling is required of an englne.

Even with the construction disclosed in the accompanying drawings, which embodies my invention, all the heat obtainable of the exhaust gases is necessary, especially for the vaporization of the heavier grades.

of petroleum, as will be more particularly referred to hereinafter.

Q Differing from all other constructions of this type, my device provides a fuel passage equipped with transverse impingement members arranged in staggered formation, the said fuel. assage being formed in the exhaust manlfold where its wall is exposed to the initial temperature of the enveloping gases; and preferably, the exhaust-outlet of the manifold is formed at approximately its longitudinal center, so that each intake fuel charge is heated by a simultaneous exhaustgas discharge. 1

The invention consists in the matters hereinafter more fully set forth, illustrated in the accompanying drawings, forming a part of this application and pointed out in the ap ended claims.

eferring to the'drawings, like designating characters will denote like parts;

igure 1 is a view in longltudinal section through a device that embodies features of the invention;

Fig. 2 is a view in transverse section taken on or about line IIII of Fig. I;

Fig. 3 is a view in transverse section taken on or about line III-III of Fig. I;

Fig. 4 is a view in slightly reduced scale in elevation on the outlet side of the devlce;

Fig. 5 is a view in front elevation showing the device connectin a carburetor to the intake of a multi-cylmder explosive engine,

' the latter being shown diagrammatically;

Describing the device indetail, the device I an integral one butobviously may be built up of parts united in any particular manner desired. As shown in the drawings, a

-casing 1 that is designed and proportioned to provide an outlet duct 2 for the exhaust conventional type, has a common ischarge 5 with which the duct 2 communicates through a lateral extension 6, the outlet itself being preferably in an elbow formed on the extension.

A fuel inlet opening 8 into the extension 6, the latter being symmetrically disposed between the side openings 3, is connected by a conduit 9 that is bifurcated andleads into a return passage 10. The duct 9 is formed within the outlet duct 2 by a suitably d1sposed inner wall 11 that is placed within the\ duct 2. The return passage is formed by an exterior wall 12 in s aced relation to a wall 13 which is spaced rom the inner wall 11 to permit jacketing of the conduit 9 by tion and at varying intervals so as to completely baffle the inspired vapor and communicate the heat received from the envelopingexhaust gases uniformly throughout the indrawn column.

What I claim as new, is,

1. Fuel heating and mixing means for internal combustion engines comprising a casing with a lateral extension forming an exhaust passage leading from lateral openings symmetrically disposed in relation to the extension, an 'innerwall concentric with the casing and-extension forming abifurcated fuel'conduit from a fuel inlet opening in the extension completely jacketed bythe exhaust passage, a series of bafiles connecting the sides of the fuel conduit throughout the major portion thereof and an exterior wall on the casing forming a return passage leading from the end ortions of the conduit branches to a latera outlet on the extension.'

2. Fuel heating and mixing means for internal combustlonlengmes comprislng a casing with a lateral extension forming an exopenings 3 of a multi-cyl nder engine 4 of \haust passage leading from lateral inlet openings symmetrically disposed in relation to the extension, an exhaust opening in the extension, an inner wall concentric with the casing and extension formin a bifurcated fuel conduit from a fuel in et 0 ening in the extension completely jacketed" y the ex- -haust passage, a series'of baflle pins intimately connected at the ends to the wall of the fuel conduit. across which they extend for the major portion-of the extension and branch length thereof, and an exterior wall on the casing formin a return passage leading from the ends '0 the conduit arms to a lateral outlet on the extension.

3. Fuel heating and mixing means for internal combustion engines comprising a casing with a lateral extension formin an exhaust passage leading fromlatera intake openings symmetrical y disposed in relation to anoutlet at the extension, an inner wall concentric with the casing and extension forming a bifurcated fuel conduit from a fuel inlet opening in the extension com pletely' jacketed by the exhaust passage, :1. series of bafile pins in staggered relation across the extension portion and arms of the fuel conduit connecting the sides thereof to which the pins are intimately connected, and'an exterior wall on the casing forming a return passage leading from the'end portions of the conduit to a lateral outlet on the extension;

In testimon whereof I afiix my signature in presence 0 two witnesses;

JOSEPH MARIO-N KING. Witnessesz' ANNA M. Donn, C. R. S'noxmm 

